Safety-lock.



Patented Aug. 15, 1911.

4, 6 4 Inn .21

A. FBEDERIKSEN. SAFETY LOOK.

APPLIOATION FILED DEO.12, 1910.

Lilli LE1 c0 WASHINGTON D c ANTON FREDERIKSEN, OF FREDERIKSBERG, NEARCOPENHAGEN, DENMARK.

SAFETY-LOCK.

Specification of Letters Patent.

Patented Aug. 15, 1911.

Application filed December 12, 1910. Serial No. 596,964.

T 0 all whom it may concern:

Be it known that I, ANTON FREDERIKSEN, a citizen of Denmark, andresiding at Frederiksberg, near Copenhagen, Denmark, have invented newand useful Improvements in SafetyLocks, of which the following is aspecification.

My present invention relates to safety locks and a class in which thedetent pin or pins carried by the bolt are held or freed by a pintumbler or pin tumblers rotatable and longitudinally carried by atumbler casing.

The objects of my invention are to provide a lock, the bolt of which maybe actuated from the outside of the object to which it is secured by' asuitable key, or by some one familiar with the arrangement of parts ofthe look without the use of a key. I attain these objects by themechanism shown in the accompanying drawing, in which,

Figure 1 is a vertical sectional view of a lock embodying my invention,taken on substantially the line 1'1 of Fig. 2, some parts being shown inelevation to more clearly bring out the construction and arrangement ofparts, the lock being shown secured to the outer stile of a door. Fig. 2is an elevation of a lock, embodying my invention, as seen from theinner side of the lock casing. Fig. 3 is an elevation of a pin tumblercasing, as seen from the inner side of the lock. Fig. 4 is a frontelevation of a key used i connection with the lock.

Throughout the several views, like reference characters refer to similarparts.

In the drawings, 1 represents the outer stile of a door, to the innerside of which is secured a lock case 2 having a base portion 4.Extending from the outer side of the door, and detachably secured to theplate 4, is a tumbler case. 3 designed to hold the plurality of pintumblers 5.

The pin tumblers 5 extend through the tumbler case 3 and arelongitudinally movable therein, their outward movement being limited byan enlarged portion 8, encircling which, and operatively securedthereto, is a spring 15 resting against collar 16, which normally forcesthe pin tumblers to their outward limited position.

The pin tumblers are each provided at their inner end with a radial slot9 extending from the center of the pin to the periphery thereof, and attheir outer end with an L- shaped extension 21, the purposes of whichare to be subsequently described.

Slidably mounted within the case 2, is a bolt 11, normally forcedoutwardly by the action of a spring 17, having a tail piece 12 and abearing strip 20 rigidly spaced from, and carried by the tail piece 12.A suitable cam 18, carried by a knob 19, is adapted to actuate the bolt11, by bearing against the bearing strip 20, when the bolt is free tomove in an unlocking position.

The tail piece 12 carries a plurality of detent pins 10, longitudinallymovable in openings 12 and arranged to coact with the pin tumblers 5, adetent pin for each pin tumbler. The detent pins are provided with anend portion, 10, slightly reduced in diameter with relation to the widthof the slots 9, and a reduced portion 10 which extend through slots 2 inthe casing 2, the slots being covered by a plate 23 movable with respectto the casing through guide members 23, and having spring receivingcasings 13 each adapted to confine a compression spring14-which normallyforces the detent pins in the direction of the pin tumblers 5. Thedetent pins are further provided,'at the outer end of their reducedportions 10,'with collars 24 interposed between which and the plate 23,is a pull plate 24 by which all of the detent pins may be drawnoutwardly from the case.

With reference to Figs. 1 and 3 it will be seen that, when all the slotsare extending in the same direction and parallel with the line ofmovement of the bolt 11, the detent pins are free to move with the bolt11 to an unlocking position as soon as they are forced against thesprings 14 and thus freed from the base plate 4.

To accomplish the arranging of the slots as above mentioned, L-shapedprojections being arrangedindependently of the direction of the slotsand diflerently in any or all looks, I provide a key 7 having slottedguide openings 22 arranged to bring all of the projections 21 in such apositlon'that the slots are arranged, allowing movement of the bolt 11to an unlocking position, upon forcing the detent pins inwardly asdescribed, by pressure on the pin tumblers 5. It will be seen, however,that any one familiar with the location of the slots with respect to theprojections 21, many particular'lock, may, without a key, arrange thepins for the purpose of drawing the bolt. It will further be seen thatthe bolt may be unlocked from the inside of the door by merely drawingforward on the plate 24,

and manually pushing it to one side in an unlocking direction, whichmovement carries with it the plate 23 and associated parts.

It is of course understood that I may provide a lock with one pintumbler and a cotion, a suitable casing, a bolt movable therein, meansfor actuating said bolt, a detent pin arranged transversely with respectto and carried by said bolt, a tumbler case, and a pin tumbler thereinhaving a radial slot at its inner end in operative relation to hold orfree said detent pin.

2. A safety lock comprising in combination, a suitable casing, a boltmovable therein, means for actuating said bolt, a plurality of detentpins arranged transversely and carried by said bolt, a tumbler case anda plurality of pin tumblers therein each having a radial slot at itsinner end in operative relation to hold or free said detent pins.

3. A safety lock comprising in combination, a suitable casing, a boltmovable therein, means for actuating said bolt, a longitudinally movabledetent pin arranged transversely with respect to and carried by saidbolt, a tumbler case, a pin tumbler longitudinally movable therein andhaving a radial slot at its inner end in operative rela: tion to hold orfree said detent pin, and means actuating said pin tumbler to a positionwith the said radial slot in parallel relation to the line of movementof said bolt.

A. A safety lock comprising in combination, a suit-able casing, a boltmovable therein, means for actuating said bolt, a plurality oflongitudinally movable detent pins arranged transversely with respect toand carried by said bolt, a tumblercase, a plurality of pin tumblerslongitudinally movable therein, each having a radial slot at its innerend in operative relation to hold or free said detent pins, and meansactuating said pin tumblers to a position with the said ra dial slots inparallel relation to each other and to' the line of movement of saidbolt.

5. A safetylock comprising in combination, a suitable casing, a boltmovable therein, means for actuating said bolt, a longitudinally movabledetent pin arranged transversely with respect to and carried by saidbolt, a tumbler case, a pin tumbler longitudinally movable therein andhaving a radial slot its inner end in operative relation to hold or freesaid detent pin, means actuating said pin tumbler to a position with thesaid radial slot in parallel relation to the line of movement of saidbolt, and means located on the inner side of the lock to draw saiddetent pin independently of said pin tumbler.

6. A safety lock comprising in combination, a suitable casing, a boltmovable therein, means for actuating said bolt, a plurality oflongitudinally movable detent pins arranged transversely and carried bysaid bolt, a tumbler case, a plurality of pin tumblers longitudinallymovable therein, each having a radial slot at its inner end in operativerelation to hold or free said de tent pins, means actuating said pintumblers to a position with the said radial slots in parallel relationtoeach other and to the line of movement of said bolt, and means locatedon the inner side of the lock to draw said detent pins independently ofsaid pin tumblers.

7 A safety lock comprising, a suitable casing, a bolt movable therein,means normally forcing said bolt to a locking position, means foractuating said bolt, a longitudinally movable detent pin arrangedtransversely with respect to and carried by said bolt, a tumbler casing,and a longitudinally movable pin tumbler carried thereby and having aradial slot at its end for holding or freeing said detent pin.

8. A safety lock comprising, a suitable casing, a bolt movable therein,means normally forcing said bolt to a locking posi tion, means foractuating said bolt, a plurality of detent, pins longitudinally movable,transversely arranged with respect to and carried by said bolt, atumbler casing, and a plurality of longitudinally movable pin tumblerscarried thereby, each having a radial slot at its end to hold or freesaid detent pins, combined substantially as described. V

9. A safety lock comprising, a suitable casing, a bolt movable therein,means normally'forcing said bolt to a locking position, means foractuating said bolt, a longitudinally movable detent pin arrangedtransversely with respect to and carried by said bolt, a tumbler casing,a longitudinally movable pin tumbler carried thereby and having a radialslot at its inner end to hold or free said detent pin, means actuatingsaid pin tumbler to a position with the said radialslot in parallelrelation to the line of movement of said bolt, and means located on theinner side of the lock to draw said detent pin independently of said pintumbler. V

.10. A safety lock comprising, a suitable casing, a bolt movabletherein, means normally forcing said bolt to a locking position, meansfor actuating said bolt, a plurality of longitudinally movable detentpins arranged transversely with respect to and carried by said bolt, atumbler casing, a plurality of longitudinally movable pin tumblerscarried thereby, each having a radial slot at its inner end to hold orfree said detent pins, means actuating said pin tumblers to a positionwith the said radial slots in parallel relation to each other and to theline of movement of said bolt, and means located on the inner side ofthe lock to draw said detent pins independently of said pin tumblers,combined substantially as -described, 4

11. A safety lock comprising, a suitable casing, a bolt movable therein,means for actuating said bolt, a longitudinally movable detent pinarranged transversely with respect to and carried by said bolt, atumbler casing, a longitudinally movable pin tumbler carried thereby andhaving a radial slot at its inner end to hold or free said detent pin, abase plate having an aperture, means normally forcing said detent pin inengaging relation to the said aperture, and a key adapted to rotate saidpin tumbler and force the same inwardly with the said radial slotextending in parallel relation to the line of movement of said bolt,combined substantially as described.

12. A safety lock comprising, a suitable casing, a bolt movable therein,means for actuating said bolt, a plurality of longitudinally movabledetent pins arranged transversely with respect to and-carried by saidbolt, a tumbler casing, a plurality of longitudinally movable pintumblers carried thereby, each having a radial slot at its inner end tohold or free said detent pin, a base plate having a plurality ofapertures, means normally forcing said detent pins in engaging relationto the said apertures, and a key adapted to rotate said pin tumblers andforce the same inwardly with the said radial slots extending in parallelrelation to each other and to the line of movement of said bolt.

In testimony whereof I afliX my signature in presence of two witnesses.

ANTON FREDERIKSEN.

Witnesses HANS PEDERSEN, PETER J ACOBSEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

